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Cotton breeding in the State of Sao Paulo: development of cultivar IAC 21

Cotton breeding in the State of Sao Paulo: development of cultivar IAC 21

Bragantia 60(1): 9-17

ISSN/ISBN: 0006-8705

It is described the program to obtain cotton cultivar IAC 21 developed over the period of 1981/82 to 1993/94. The cultivar IAC 21 was originated from selections in 'IAC 19' population using the pedigree procedure taking into account some agronomical characteristics, and complemented with two specific breeding cycles for resistance to Colletotrichum gossypii var. cephalosporioides and to nematodes. Initially, comparisons of results were made to 'IAC 19', later to 'IAC 20'.

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